Deuteronomy 23:22-24

Tree of Life Version

²² “When you make a vow to Adonai your God, you are not to delay to make good on it—for Adonai your God will certainly require it of you, and you would have sin on you. ²³ But if you refrain from making a vow, you would not have sin on you. ²⁴ Whatever comes out of your lips you are to take care to do, since you have vowed to Adonai your God a freewill offering that you have promised with your mouth.